CA2153273A1 - Ring Oscillator with Frequency Control Loop - Google Patents

Ring Oscillator with Frequency Control Loop

Info

Publication number
CA2153273A1
CA2153273A1 CA2153273A CA2153273A CA2153273A1 CA 2153273 A1 CA2153273 A1 CA 2153273A1 CA 2153273 A CA2153273 A CA 2153273A CA 2153273 A CA2153273 A CA 2153273A CA 2153273 A1 CA2153273 A1 CA 2153273A1
Authority
CA
Canada
Prior art keywords
oscillator
frequency
reference clock
bias current
count difference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2153273A
Other languages
French (fr)
Other versions
CA2153273C (en
Inventor
Chinh L. Hoang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arris Technology Inc
Original Assignee
General Instrument Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Instrument Corp filed Critical General Instrument Corp
Publication of CA2153273A1 publication Critical patent/CA2153273A1/en
Application granted granted Critical
Publication of CA2153273C publication Critical patent/CA2153273C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits
    • H03K3/0315—Ring oscillators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/354—Astable circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0995—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator comprising a ring oscillator

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

An oscillator system and method in which a time period (inverse of frequency) of a multi-stage ring oscillator (ROSC) is adjusted by a bias current which controls the charging and discharging times of respective capacitors (e.g., interelectrode capacities) within each stage. The time periods of the unadjusted oscillator are counted along with the time periods of a reference clock over a same period of time and a count difference between the two counts is determined. The count difference is applied by a logic circuit in accordance with an algorithm relating count differences to incremental bias current levels to adjust the frequency of the oscillator. The logic circuit generates digital gate signals corresponding to the count difference and these signals automatically select the bias current level needed to bring the oscillator frequency into close agreement with the reference clock frequency. The digital gate signals are stored in a non-volatile memory so that the oscillator will continue to operate at the adjusted frequency (i.e., that of the reference clock) even if the reference clock is no longer present and power is temporarily removed. The oscillator system is well suited for implementation by complementary metal oxide semiconductor (CMOS) technology as part of an integrated circuit (IC).
CA002153273A 1994-07-12 1995-07-05 Ring oscillator with frequency control loop Expired - Fee Related CA2153273C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US274,011 1994-07-12
US08/274,011 US5406228A (en) 1994-07-12 1994-07-12 Ring oscillator with frequency control loop

Publications (2)

Publication Number Publication Date
CA2153273A1 true CA2153273A1 (en) 1996-01-13
CA2153273C CA2153273C (en) 1999-03-16

Family

ID=23046397

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002153273A Expired - Fee Related CA2153273C (en) 1994-07-12 1995-07-05 Ring oscillator with frequency control loop

Country Status (9)

Country Link
US (1) US5406228A (en)
EP (1) EP0692879B1 (en)
JP (1) JP3445412B2 (en)
KR (1) KR100352328B1 (en)
CN (1) CN1061189C (en)
BR (1) BR9503280A (en)
CA (1) CA2153273C (en)
DE (1) DE69532257T2 (en)
HK (1) HK1014093A1 (en)

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JP3519143B2 (en) * 1994-11-17 2004-04-12 三菱電機株式会社 Current type inverter circuit, current type logic circuit, current type latch circuit, semiconductor integrated circuit, current type ring oscillator, voltage controlled oscillator, and PLL circuit
US5796313A (en) * 1996-04-25 1998-08-18 Waferscale Integration Inc. Low power programmable ring oscillator
KR100265611B1 (en) * 1997-12-31 2000-09-15 김영환 Ring oscillator
US6385442B1 (en) * 1998-03-04 2002-05-07 Symbol Technologies, Inc. Multiphase receiver and oscillator
JP2001013179A (en) * 1999-06-29 2001-01-19 Mitsubishi Electric Corp Measurement method for ring oscillator clock frequency, measurement circuit for ring oscillator clock frequency, and microcomputer
ITTO20020288A1 (en) * 2002-04-02 2003-10-02 St Microelectronics Srl ADJUSTABLE FREQUENCY OSCILLATOR CIRCUIT AND RELATED CALIBRATION METHOD.
US7212022B2 (en) * 2002-04-16 2007-05-01 Transmeta Corporation System and method for measuring time dependent dielectric breakdown with a ring oscillator
DE10255355A1 (en) * 2002-11-27 2004-06-24 Infineon Technologies Ag Method for automatic detection of the clock frequency of a system clock for the configuration of a peripheral device
US7023285B2 (en) * 2003-07-15 2006-04-04 Telefonaktiebolaget Lm Ericsson (Publ) Self-calibrating controllable oscillator
CN100395956C (en) * 2003-11-12 2008-06-18 晶豪科技股份有限公司 Crystal oscillator capable of self correction and its correcting method and its special integrated circuit
KR100587064B1 (en) * 2003-12-08 2006-06-07 주식회사 하이닉스반도체 An oscillator circuit operated with a variable driving voltage
KR100814919B1 (en) 2006-06-12 2008-03-19 삼성전기주식회사 Oscillation stabilization detecting circuit
ES2742550T3 (en) 2008-07-18 2020-02-14 Becton Dickinson Co Dual chamber and gear pump assembly for a high pressure management system
JP2010263411A (en) * 2009-05-07 2010-11-18 Renesas Electronics Corp Touch sensor system, and microcomputer
CN101567678B (en) * 2009-05-27 2011-09-14 清华大学 Numerical control ring-shaped oscillator with adjustable series
US8373482B2 (en) * 2011-01-13 2013-02-12 Texas Instruments Incorporated Temperature sensor programmable ring oscillator, processor, and pulse width modulator
US8797106B2 (en) * 2012-03-28 2014-08-05 Micron Technology, Inc. Circuits, apparatuses, and methods for oscillators
CN102793276B (en) * 2012-08-03 2014-09-03 胡朝群 Electronic cigarette chip and electronic cigarette
KR101419834B1 (en) * 2013-01-18 2014-07-18 성균관대학교산학협력단 Frequency synthesizer using voltage controlled oscillator
KR101616480B1 (en) * 2013-06-28 2016-04-28 주식회사 라온텍 Reference current generation circuit and voltage controlled oscillator device equipped with the same
CN103391045B (en) 2013-07-30 2015-11-25 浙江大学 Oscillator on integrated circuit chip is adjusted in reviewing one's lessons by oneself of anti-process fluctuation
CN104065344B (en) * 2014-04-28 2017-02-01 无锡中星微电子有限公司 Low-consumption oscillator
CN107390766B (en) * 2017-07-31 2019-07-02 西安矽力杰半导体技术有限公司 Current mirror circuit
CN109167571A (en) * 2018-08-13 2019-01-08 中科芯集成电路股份有限公司 A kind of low-power consumption ring oscillator and its implementation
US11437981B1 (en) * 2021-03-31 2022-09-06 Nxp B.V. Temperature compensated auto tunable frequency locked loop oscillator
CN113156808B (en) * 2021-04-13 2022-07-05 南京埃斯顿自动化股份有限公司 Processing method for multi-clock synchronization in motion control system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129068A (en) * 1974-09-05 1976-03-11 Nippon Telegraph & Telephone
NL8701831A (en) * 1987-08-04 1989-03-01 Philips Nv OSCILLATOR WITH FREQUENCY STABILIZERS.
US5028888A (en) * 1989-11-15 1991-07-02 Level One Communication, Inc. Multistage current-controlled oscillator
US5302919A (en) * 1990-10-23 1994-04-12 Seiko Epson Corporation VCO having voltage-to-current converter and PLL using same
IL96351A (en) * 1990-11-14 1994-01-25 Zuta Marc Frequency synthesizer having microcomputer supplying analog and digital control signals to vco
US5136260A (en) * 1991-03-08 1992-08-04 Western Digital Corporation PLL clock synthesizer using current controlled ring oscillator
JPH04361408A (en) * 1991-06-07 1992-12-15 Mitsubishi Electric Corp Variable frequency oscillation circuit
US5142247A (en) * 1991-08-06 1992-08-25 Compaq Computer Corporation Multiple frequency phase-locked loop clock generator with stable transitions between frequencies
US5204589A (en) * 1992-03-02 1993-04-20 Thomson Consumer Electronics, S.A. Data signal controlled oscillator for a video display
JPH05259900A (en) * 1992-03-10 1993-10-08 Ricoh Co Ltd Phase modulation circuit
EP0572135B1 (en) * 1992-05-26 1999-09-01 Digital Equipment Corporation State machine phase lock loop
US5315270A (en) * 1992-08-28 1994-05-24 At&T Bell Laboratories Phase-locked loop system with compensation for data-transition-dependent variations in loop gain
JPH06112817A (en) * 1992-09-25 1994-04-22 Fujitsu Ltd Pll frequency synthesizer circuit

Also Published As

Publication number Publication date
HK1014093A1 (en) 1999-09-17
KR960006245A (en) 1996-02-23
CN1135118A (en) 1996-11-06
JP3445412B2 (en) 2003-09-08
DE69532257T2 (en) 2004-09-16
CA2153273C (en) 1999-03-16
KR100352328B1 (en) 2002-12-28
CN1061189C (en) 2001-01-24
JPH0879072A (en) 1996-03-22
EP0692879A1 (en) 1996-01-17
EP0692879B1 (en) 2003-12-10
DE69532257D1 (en) 2004-01-22
US5406228A (en) 1995-04-11
BR9503280A (en) 1996-04-09

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